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spring pole
| rig
| spring pole | |
| tech. | 弹簧杆; 手动冲击钻杆 |
| rig | |
| econ. | 囤积; 控制 |
| fishery | 网纲装配 |
| hydroel.st. | 装置 |
| met. | 装备 |
| soil. | 钻孔设备 |
| space | 装配; 安装 |
| |||
| 弹簧杆; 手动冲击钻杆 | |||
| spring pole: 7 phrases in 3 subjects |
| Computer numerical control | 1 |
| Oil / petroleum | 1 |
| Technology | 5 |
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